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Measuring ACLR performance in LTE transmitters

Posted: 21 Jun 2010 ?? ?Print Version ?Bookmark and Share

Keywords:LTE transmitters? cellular technology? 3GPP networks?

As wireless service providers push for more bandwidth to deliver IP services to more users, LTE has emerged as a next-generation cellular technology with great potential to enhance current deployments of 3GPP networks and to enable significant new service opportunities. However, LTE's complex, evolved architecture introduces new challenges in designing and testing network and user equipment. The commercial success of LTE will depend in part on the ability of all devices to work as specified. One of the particular challenges at the air interface will be power management during signal transmission.

In a digital communication system such as LTE, the power that leaks from a transmitted signal into adjacent channels can interfere with transmissions in the neighboring channels and impair system performance. The adjacent channel leakage-power ratio (ACLR) test verifies that system transmitters are performing within specified limits. This critical yet complex transmitter test can be made quickly and accurately using modern signal analyzers such as the Agilent X-Series (PXA/MXA/EXA) signal analyzers with LTE measurement software and signal generators such as the Agilent MXG signal generator with LTE signal creation software.

View the PDF document for more information.

Click here to view related datasheets.

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